25072205099 has 4 divisors (see below), whose sum is σ = 25184636736. Its totient is φ = 24959773464.

The previous prime is 25072205089. The next prime is 25072205173. The reversal of 25072205099 is 99050227052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25072205099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25072205029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56215484 + ... + 56215929.

It is an arithmetic number, because the mean of its divisors is an integer number (6296159184).

Almost surely, 2^25072205099 is an apocalyptic number.

25072205099 is a deficient number, since it is larger than the sum of its proper divisors (112431637).

25072205099 is a wasteful number, since it uses less digits than its factorization.

25072205099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112431636.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 25072205099 in words is "twenty-five billion, seventy-two million, two hundred five thousand, ninety-nine".